Digital PDF pattern for making the lower back piece of the ODM gear.
There will be the PDF file and the instructions are on YouTube at https://www.youtube.com/watch?v=yBwkKjuGW9w
To print, you can open it in Acrobat Reader DC (which is a free download) and select poster when printing. It should print on 6 pages, then you can tape the pages together. If you don't have a printer, Office Max can print it for about $2, just ask for them to print it poster size.
I really hope this helps you with your cosplay!